Pavement-marker.



. PATENTED AUG. 20, 1907.

R. s. BLOME & W. J. SINEK. PAVEMENT MARKER.

APPLIGATION FILED FEB. 7, 1907.

4 SHEETS-SHEET 1.

.PATENTED AUG. 20, 1907. BLOME & W. J. SINEK. PAVEMENT MARKER APPLICATION FILED FEB 7, 1907 4 SHEETSSHBE T 2.

PATENTED AUG. 20, 1907. R. S. BLOME 8; W. J. SINBK.

PAVEMENT MARKER. APPLICATION FILED FEB. 7, 1907.

4 SHEETS-SHEET 3.

PATENTED AUG. 20, 1907. R. S. BLOME & W. J. SINEK.

PAVEMENT MARKER. APPLICATION FILED FEBJ, 1907.

4 SHEETS-SHEET 4.

RUDOLPH s. BLOME'IAND WILLIAM J. SINElL-OF CHICAGO, ILLINOIS.

PAVEMENT-MARKER.

Specification of Letters Patent.

.Ttatented Aug. 20, 1907.

Application filed February 7,1907- Serial No. 856.235.

To all whom it may concern:

Be it known that we, RUDOLPH S. Bromn andWIL- LIAM J. SINEK, citizens of the UnitedStates, both residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pavement-Markers, of which the following is a specification. V 4

Our invention relates to pavement markers for grooving or scoring the top face of the pavement before thematerial of the wearing surface of the'paveinent' has become hard or set. I

By use-of our improved invention, a pavement may be quickly, easily and accurately scored, both longitudinally and crosswise, to give it the appearance of. block paving and to prevent its surface from being slippery.

Our device comprises a main frame spanning the roadway, a number of shoes or groovers to mark the form the lateral pavement lengthwise, and a carriage equipped with similar marking means adapted to travel across the roadway on the main frame and at the same time 'perooving operation, By turning a handle provided for the purpose, the whole machine may be caused to travel along the roadway on suitable temporary rails, at the same time marking or'sco'ring the pavement longitudinally. Then .when the main frame has reached the proper position, in which it may be locked, the carriage is caused to traverse the pavement laterally, scoring the same crosswise. i

On the accompanying drawings, which form a part of this specification, we have illustrated the preferred embodiment of our invention, and on said drawings like reference characters refer to the same parts throughout the various views. 1 Figure 1 is a side elevation ofour improved pavement marker; Fig. 2 is a fragmentary side elevation of the same, upon a larger scale; Fig. 3 is an end elevation of the machine; Fig. 4 is a fragmentary plan view of a portion of the machine, on anenlarged scale; and

liig. 5 is a vertical cross section on line 5-5 of Fig. 2..

At each end, the main frame of the pavement marker has an invertedchannel bar 10 supported by means of wheels or rollers 11 adaptedflto travel. on temporary rails 1212 spaced away the proper amount from the curbings 13 by planks or beams 14, as is clearly illus- -trated on Fig. 1. Resting upon these channel beams or sills 10 is a pair'of long angle bars 15, above which are disposed similar angle bars 16 connected to the lower bars by. suitable lattice work 17, 17, this lattice. work forming the sidesof the supporting frame of the machine. In order to maintain these sides in the proper vertical position and space them apart the proper "amount, we provide a'toplattice work 18, which may be of the usual and ordinary character. To brace the sides 17, we provide, outside of the same, a number of inclined bars or braces: 19, which aid in the support of the sides, as will be readily understood. Across the front oi the mechanism, and in advance of the angle bar 15, isprovided a" similar bar 20, whose ends rest upon and are supported by the sills 10. Supported below this pair of bars 15 and 20, by means of suitable lattice work 21-21, is another pair ofbars 22. The

horizontal flanges of these'fourfbars are apertured at intervals in alinement to receive pairs of screwthreaded upright rods' 23 having fastened at their lower ends the marking shoes or trowelss24, and each having at its upper end a nut 25 byjwhich the position of the shoe may be readily adjusted. Beneath the upper bars, rods 23 are each equipped with a screwthreaded nut 26, between which and the under surfaces of angle bars 15 and 20 are interposed helical springs 27 encircling the rods Aswill be obvious, these springs press downwardly upon the nuts, thereby forcing the shoes downwardly onto the pavement, and it will be apparent that the pressure of these springs may be readily adjusted by manipulating the nuts 26. Just inside of the sides 17 are positioned and supported in any desirable manner the pair of bars'or tracks 28 running lengthwise ofthe main frame, as is clearly shown 2. These tracks 28 have their upper surfaces. curved to correspond approximately to the crown of thezroad beneath the frame; Adapted to travelon these tracks is a'caniage 2 9 composed at its top of two. longitudinal angle bars 30, beneath which are similar lower angle bars 31, the latter being suspended from the former by means of diagonal bars 32. At each end, this carriage or truck has a pair of grooved rollers 33 adapted to straddle and ride upon the curved tracks 28. To the angle bars 30 are riveted similar members as shown in Fig. 2, and all the angle bars of the carriage are apertured at intervals to accommo= date rods 35, to the lower ends of whichare attached the plurality of parallel shoes or markers 36, similar in construction to the shoes 24, shown in Fig. 5. The rods 35 are presseddownwardly, as in the previous instance, bycoiled-springs 37, and are adjustable vertically by means of the nuts 38 co-acting with the upper screwthreaded ends of therods. By turning these nuts, the vertical position of the'marker or shoe can be regulated at will, as will be apparent from arr-inspection of the drawings.- To cause this carriage to travel on themain frame transversely the. pavement, thereis provided to the front and rear sides of the carriage 29 One of these shafts 39 has a handle 43,- whereby it may be turned, and rotation of this-shaft causes the sprocket chains to travel, as is obvious, and the carriage and its I markers to travel on the tracks 28, the markers or shoes 36 scoring or grooving the pavement crosswise, since this movement of the carriagc'is, caused to take place before the top face of the pavement hasbecome set or hardened. Y

Forward movement of the whole frame may be accomplished by means of the mechanism comprising a longitudinal shaft 44 on the rear side of the machine, rotatably mounted in a plurality of bearings 45. At

each end, this shaft has a toothed pinion 46 meshing.

- chine, each being capable of manipulation by a bellcrank handle 51 pivoted at 52 to any convenient portion of the framework above corresponding rail 12, the latter being notched at intervals, at 53, to accommodate the lower end, of the dog, so that the frame or whole machine may be held fixedly while the carriage 29 is traveling on its rails or tracks 28. Preferably, these notches are spaced apart an amount corresponding substantially to the length of carriage 29, so that each time the machine is advanced and the dogs inserted in the next notches, the carriage is in proper position for performing the cross-grooving of the pavement.

The operation of this. machine is as follows: Assuming that the markers 36 on carriage 29 have been raised sufficientlyto escape the pavement and that the look ing dogs 50 have been raised by means of their handles 5]. so as to be free from the notches 53, then, by turning the handle 49, the whole machine may be fed forwardly by means of the gearing 46, 47 and 48, the shoes 24 dur- 'ing this travel of the mechanism scoring or grooving the pavement face longitudinally. I When the machine has been fed sufficiently so that the dogs 50 are above the nextnotches 53, the turning of handle 49 is stopped and the dogs 50 permitted to enter the notches 53, thereby holding the framework firmly in position. The shoes 36 of the carriage are then forced downwardly sufliciently-to sink into the soft face of the pavement, and by rotating shaft 39'by means of its operating handle 43, the carriage is compelled to travel longitudinally of the frame on its tracks28, crosswise of the pavement, at the same timescoring the pavement laterally, as will be apparent. I v I It should be noted that the shoes or markers 24 and 36, during'their grooving operation, are pressed down- 'f1'ame,'one or more markers actua't The details of construction of the framework, as illustrated, are quite immaterial, and may be varied within wide limits without departing from the substance of'our invention. Other minor changes may also be made in the machine herein set forth without sacrificing any of the advantages ofour invention.

We claim:

1. In a pavement marker, the combination of a main frame, rollers or wheels supporting said main frame, tracks upon which said rollers are adapted to travel, a plurality of markers supported by said frame, and means to turn said rollers to move said frame and groove the surface of the pavement by said markers, substantially as described.

2. In a pavement marker, the combination of a main frame, a carriage adapted to travel on said main frame, means to actuate said carriage, and one or more markers operated by said carriage to groove the pavement as said carriage travels on said frame, substantially as described.

3. In a pavement marker, the combination of a movable main frame/means to move 'said frame one or more markers adapted'to groove the pavement during the movement of said frame, a-carriage adapted to travel on said frame transversely to the path of travel of said fra ne, means to actuate said carriage, and one or more markers operated by said carriage during its travel to groove the pavement, substantially as described.

.4. In a pavement marker, the combination of a movable main frame, means to move said frame, means to hold said frame ina fixed position, one or more markers adapted to groove the pavement during the movement of said frame, a carriage adapted to travel on said frame transversely to the path of travel of said frame, means to actuate said carriage, and one or more markers operated by said carriage during its travel to groove the pavement, substantially asd'escribed.

5. 'In a pavement marker, the combination of a plurality of rails,'one or more of which is .notched, a main frame, rollers or wheelsadapted to travel on said rails and support said frame, one or more markers on said frame adapted to groove the pavementas said frame travels on said rails, means coiiperatingwith said-hatches to hold said frame from moving, a carriage adapted to travelv on said said carriage .to groove the pavement as said carria'g'travels, and means to operate saidcarriage, substantially. as described.

- RUDOLPH S. BLOME.

WILLIAM ,J. SINEK.

Witnesses to the signature of Rudolph S. Biome:

S. V. Coxn'r'rnn, W. W. Mason.

Witnesses to the signature of William JfSinek:

FREDERICK C. Goonwm, \VALTER M. FULLER. 

